Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KO4DEL callsign genealogy
Currently held by Ling, David E
The FCC publishes a previous_call_sign on
every amateur license — a self-link to the licensee's prior callsign.
Following those links produces the chain below.
Previous callsigns
Older callsigns held by KO4DEL's current licensee, walking backwards.
- Ling, David EFLgranted 2022-03-21cancelled 2022-09-30
Successor callsigns
Callsigns held now by people who previously held KO4DEL.
- Morse, Craig SVAgranted 2020-05-22
All historical holders
Every license row we've seen with the callsign KO4DEL, oldest first.
- Morse, Craig S VA2020-04-27 → cancelled 2020-05-22
- Ling, David E FL2022-09-30 active